<header ui-dragdrop:desktop>
    <h2>
        水分子式H2O
    </h2>
    <div class="src-url">
        查看源码：
        <a ui-bind:href="srcUrl" ui-bind="srcUrl" target="_blank"></a>
    </div>
    <div class="win-btns">
        <button class="close" ui-on:click.stop="$closeDialog">关闭</button>
    </div>
</header>
<div class="content h2o" ref="mycontent">

    <!-- 绘制图表 -->
    <canvas ref="mycanvas" class="canvas" width="500" height="500"></canvas>

</div>